Leak-proof straw



FIG. 1 illustrates an elevational view of the leak-proof straw with attached adapter, valve, and snap-fit ring, showing my new design.

FIG. 2 illustrates an environmental elevational view of the straw of FIG. 1 during use with a drink container.

FIG. 3 illustrates a top end view of FIG. 1.

FIG. 4 illustrates a bottom end view of FIG. 1.

FIG. 5 illustrates an environmental elevational view of a second embodiment of the straw of FIG. 1 as packaged with a juice box.

FIG. 6 illustrates an elevational view thereof.

FIG. 7 illustrates a top end view of FIG. 6.

FIG. 8 illustrates a bottom end view of FIG. 6.

FIG. 9 illustrates an environmental elevational view of a third embodiment of the straw of FIG. 1 as packaged with a juice box.

FIG. 10 illustrates an elevational view thereof.

FIG. 11 illustrates a top end view of FIG. 10; and,

FIG. 12 illustrates a bottom end view of FIG. 10.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a leak-proof straw, as shown and described. 